The Dipper will take your marble, pick it up, move down a level and drop it. Use this extension for a dynamic way to change between the levels in your tracks. You can control what side the ball will leave the Dipper allowing you to continue building in the right direction. Combined with the GraviTrax Starter Set, the Dipper will guarantee fast-paced fun and action-packed tracks! This STEM system [Science, Technology, Engineering and Maths] is an ideal one to teach kids about gravity, magnetism, kinetic energy and fun. Hit a snag? Freestyle with your own track design or use the tasks and blueprints included to help you to get started in the world of GraviTrax! Are the gravity spheres stopping or flying off before reaching the end target? Time for some problem solving. Rebuild and try something different! The GraviTrax track system can be extended indefinitely with extra track packs and add-on's - each sold separately. This set is suitable for 1+ players, ages 8 years and up. 1x Dipper, 4x Height tiles and Instructions